Claims
- 1. A compound of the following formula: and the salts thereof, whereinA is hydrogen, halo, hydroxy, C1-C6 alkyl, halo C1-C6 alkyl, C1-C6 alkoxy, halo C1-C6 alkoxy, oxo, OY wherein Y is a hydroxy protecting group, or absent; the broken line represents an optional double bond with proviso that if the broken line is a double bond, then A is absent; Ar1 is phenyl optionally substituted by one or more substituents selected from halo, hydroxy, C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkoxy-C1-C4 alkoxy, CF3, carboxy-C1-C4 alkoxy and C1-C4 alkoxy-carbonyl-C1-C4 alkoxy; Ar2 is pyridyl optionally substituted by one or more substituents selected from halo, hydroxy, amino, nitro, carboxy, C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkylamino, di C1-C4 alkylamino, halo C1-C4 alkyl, C1-C4 alkythio and sulfonyl methyl; R1 is hydrogen, hydroxy, C1-C4 alkyl, C1-C4 alkoxy or OY wherein Y is a hydroxy protecting group; and R2 and R3 are independently selected from hydrogen, hydroxy, C1-C7 alkyl optionally substituted by one or more hydroxy or halo, C3-C6 cycloalkyl, C2-C6 alkenyl, C2-C6 alkynyl, C1-C7 alkoxy, phenyl optionally substituted by halo, phenyl C1-C7 alkyl, halo substituted phenyl C1-C7 alkyl, and (CH2) nX—R4 wherein n is one or two; X is O, NH or S and R4 is C1-C3 alkyl, or R2 and R3, together with the nitrogen atom to which they are attached, form a pyrrolidine, piperidine or morpholine ring, optionally substituted by C1-C3 alkyl or halo.
- 2. A compound according to claim 1, whereinA is hydrogen, halo, hydroxy, oxo or OY, or if the broken line is a double bond, then A is absent; Ar1 is phenyl optionally substituted by one to three substituents selected from halo, hydroxy, C1-C4 alkoxy, carboxy C1-C4 alkoxy and C1-C4 alkoxy-carbonyl-C1-C4 alkoxy; Ar2 is pyridyl, optionally substituted by one to two halo or C1-C4 alkoxy; R1 is hydrogen, hydroxy or C1-C4 alkyl; and R2 and R3 are independently selected from hydrogen, C1-C7 alkyl optionally substituted by one or more hydroxy or halo, C3-C6 cycloalkyl, C2-C6 alkenyl, C2-C6 alkynyl, C1-C4 alkoxy phenyl and halo substituted phenyl C1-C7 alkyl, or R2 and R3, together with the nitrogen atom to which they are attached, form a pyrrolidine or morpholine ring.
- 3. A compound according to claim 2, whereinA is hydrogen, fluorine, chlorine, hydroxy or OY wherein Y is methoxymethyl or tetrahydropyranyl; or if the broken line is a double bond, then A is absent; Ar1 is phenyl optionally substituted by chlorine, hydroxy, methoxy or carboxymethoxy; Ar2 is pyridyl, optionally substituted by chlorine, fluorine or methoxy; R1 is C1-C4 alkyl; R2 is C1-C7 alkyl optionally substituted by hydroxy fluorine, C2-C6 alkenyl, halo substituted phenylmethyl or phenyl; and R3 is hydrogen or methyl; or R2 and R3, together with the nitrogen atom to which they are attached, form a pyrrolidine or morpholine ring.
- 4. A compound according to claim 3, whereinA is hydroxy, fluorine or chlorine; or if the broken line is a double bond, then A is absent; Ar1 is phenyl optionally substituted by carboxymethoxy; R1 is C1-C4 alkyl; R2 is C1-C7 alkyl optionally substituted by hydroxy; and R3 is hydrogen.
- 5. A compound according to claim 4 selected from5-{N-[2-(3-(S)-fluoropyrrolidin-1-yl)-1-(S)-phenylethyl]-N-methylamino}-N′-propylpicolinamide.
- 6. A compound according to claim 3 selected from5-{N-[2-(3-(S)-hydroxypyrrolidin-1-yl)-1-(S)-phenylethyl]-N-methylamino}-N′-propylpicoiinamide.
- 7. A pharmaceutical composition for the treatment of a medical condition for which agonist activity toward opioid kappa receptor is needed, in a mammalian subject, which comprises a therapeutically effective amount of a compound according to claim 1, and a pharmaceutically inert carrier.
- 8. A pharmaceutical composition according to claim 7, which is useful as an analgesic, anesthetic, anti-inflammatory or neuroprotective agent, or useful in the treatment of arthritis, stroke or functional bowel disease.
- 9. A method for the treatment of a medical condition for which agonist activity toward opioid kappa receptor is needed, in a mammalian subject, which comprises administering to said subject a therapeutically effective amount of a compound according to claim 1.
- 10. A process for producing a compound of formula (I), which comprises reacting an amide compound of the formula (VId): Ar2a is pyridyl;X is hydrogen halo or C1-C7 alkoxy, R1 is hydrogen, optionally protected hydroxy or C1-C4 alkyl; and R2 and R3 are independently hydrogen or C1-C7 alkyl optionally substituted by hydroxy or halo; with an ethanol compound selected from compounds (Va), (Vb) and (Vc), and a mixture of compounds (Va) and (Vb) wherein compounds (Va), (Vb), and (Vc) are defined as follows: wherein A is hydrogen, halo, hydroxy, C1-C6 alkyl, halo C1-C6 alkyl, C1-C6 alkoxy, halo C1-C6 alkoxy, oxo, OY wherein Y is a hydroxy protecting oroup, or absent, Ar1 is phenyl optionally substituted by one or more substituents selected from halo, hydroxy, C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkoxy-C1-C4 alkoxy, CF3, carboxy-C1-C4 alkoxy and C1-C4 alkoxy-carbonyl-C1-C4 alkoxy; in the absence or presence of a base in a reaction inert solvent.
Parent Case Info
This is a division of U.S. application Ser. No. 09/254,805 filed Mar. 12, 1999, now U.S. Pat. No. 6,201,007, which, in turn, is the national phase of international application number PCT/IB97/01021 filed Aug. 21, 1997, which, in turn, is a continuation-in-part of international application number PCT/IB96/00957 filed Sep. 18, 1996.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5232978 |
Gottschlich et al. |
Aug 1993 |
|
Foreign Referenced Citations (5)
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325406 |
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Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
PCT/IB96/00957 |
Sep 1996 |
US |
Child |
09/254805 |
|
US |